Transmission compatibility?

Tiny
TWZTD
  • MEMBER
  • 1999 DODGE RAM
  • 5.9L
  • V8
  • 4WD
  • AUTOMATIC
  • 220,000 MILES
Can I put the transmission out of a 2001 Dodge Ram 2500 4x4 5.9 Diesel into my 1999 Dodge Ram 1500 4x4 5.9 gas?
Sunday, July 30th, 2023 AT 3:08 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,968 POSTS
No, you cannot directly install the transmission from a 2001 Dodge Ram 2500 4x4 5.9 Diesel into a 1999 Dodge Ram 1500 4x4 5.9 Gas without modifications. These two vehicles have different engine types (diesel vs. Gasoline) and are built for different purposes, which means they have different transmission specifications.

The 2001 Dodge Ram 2500 with a 5.9L Diesel engine likely has a heavy-duty transmission designed to handle the higher torque output of the diesel engine. On the other hand, the 1999 Dodge Ram 1500 with a 5.9L Gasoline engine has a transmission suited for a gasoline-powered truck.

The engines' power outputs and torque characteristics are different between gasoline and diesel engines, and this means that the transmission's design and specifications would also differ to handle these varying demands.

To make a transmission swap between these two vehicles possible, you would need to consider factors such as:

Compatibility: Check if the transmission's physical dimensions and mounting points match between the two trucks.

Electronic Compatibility: Verify if the transmission's electronic control systems (if applicable) are compatible with the engine and vehicle's electronic architecture.

Drivetrain Compatibility: Ensure that the transmission is compatible with the drivetrain components (transfer case, driveshafts, axles, etc.) Of the 1999 Dodge Ram 1500.

Customization and Modifications: Be prepared for potential modifications and customization needed to make the transmission fit and work correctly in the 1999 Ram 1500.
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Monday, July 31st, 2023 AT 12:36 PM

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